Seat



March 27, 1945.

K. HORNER ETAL SEAT Filed July 1o, 1944- 2 Sheets-Sheet 1 O m www y f 3 March 27, 1945. K, HQRNE ETAL SEAT Fglled July l0, ,1944 2 Sheets-Sheet 2 Patented Mar. 27, 1945 UNITED ISTAT-Es ,PATENT f ofFFlc-Ei y 'I I "ariane1,'.V -1 y 'A y '1 SEAT Kenneth Horner, Chicago, andi-Laurence: Bilt.-A man,.P,alos Heights, Ill'., assigner-.sf to S..Karpen.

&,. Bros.,` Chicago, Ill., a corporationA ofl Illinois.,

Application..Iul'y'1'0,l 1944;.1S'eri'al- No. 544,210? s claims., (c1. 'istsell This invention relates to seats and more particularly tosea-ts adapted to be usedf inI rai-lroad carsn and the like. I

"One of the clojectsv of the invention is to provide a seat whichmay be mounted close to a Wall of the car and which can' be reversed by Another object is to provide a seat including. movalirl'y` connected seat and base frames guided l for swinging movement;v kto reverse the seat4 by' interengaging cam parts.

Another object' is to provide a seat which` is l locked in either of' its' reversed positions against turning.

Still anotherv object of the invention'is-to pro'- videl a seatv in which guiding and locking ofthe seat frame are accomplished by three spaced follower pins vslidable in cam tracks.

follower pins I8` carried byfthe plate I6 extend.

A fastening plate I9 underlies the plate I5' and is secured to the follower pins I to hold the .frames together.` The cam slot IT extends gen- 'Ifile"plateIfS4 'also carries additional cam tracks formed* by' arcuate flanged plates 2liv projecting above the surface of the plate I5 and spaced tol form a pair of arcuate cam tracks 2'5 and 26.

'Theabove and other objects andV advantages will be more-readily apparent from' the following Figure 3` isy a partial' plan view 'on anenlarged scale showing the cam parts; I

vFigure 4 is--a section on the line 4 4 of`Figure 3; y I

' Figure 5 is a section' onthe line- 5-51 ofl Fig-ure 4'; and i Figures 6 to 9- inclusive are views similar to` Figure 5' showing the parts in different positions.

The seatl as shown comprises a'S base frame ifncludingsupporting pedestals I0 adapted to be permanently'xed' tothefloor cfa car or theflike and carryingv a rigid upper frame IIi` which is generally rectangular in outline as shown.4 A seat frame I2 is supported onf the frame I'I and Vcarries at' its ends, arms I3. The seat frame I2I is adapted to be upholstered by cushions or thelike as indicated in dotted lines at I4. n

The seat and base frames are connected to gether bycam meansincluding a platellrigi'dly carried bythe base f-rame'and an overlying plate lY carried by theseat frame. i The plate I5 forming a partoftl'ie` base frame has an arcuate cam on the line '2.-2 of Figf- Cam' tracks 25 and- 26j are connected vatan acute angle-and terminate adjacent Vthel slots I'l. so' that the three' cam track' means together form in` effect an equilateral' triangle. 'A cam follower pin` 21 is carried by the plate I l and terminates in a roller 28 fitting underfthe flanges of the platesA 24 to be guided inv the tracks 25Hand 26.

With the seat in the position shown. in Figure 1' the twol frames IiI" and I2 lie parallel in ,super `v imposed `position and the follower pins I8 and 21 occupyk the position in the cam tracks shown in` Figure 3. In'thispositionA the pins I8lie inthev locking'projections y23 of one of the loops 2`I and the adjacent one of the track projections, ,22. The pin 2'1 liesV adjacent thel junction of the opposite projection 2-2Y with the slot IT. At this time en-` gagement of the pins I8 inthe locking` projeck tions prevents the frames from beingturned: relabase frame receiving locking pins 3l` carried byl theoppo'site ends of the seat frame I2', `As will be seen in Figure l the bracket' 29 isjformedj at each end with a slot portion lyingl parallel to. the length of the base frame into which the locking pins extend when the seat is in its locked position.

To release thev seat vfor reversing itsposition the seat may be grasped and moved lengthwise to the right as seen inV Figure l to move the Lpins 3'I out 'of the slots in the bracket 29; At the same time the pins I8 are movedv out of locking pro,- jectins 273'-r tok the position shown in Figure 5. At'

I this time the seat may be turned freely-in a clock"-V wise direction as seen in Figure 1. It willl be noted that the first motion moves the left' end of the-seat away from a wall adjacent which it may be mountedg and it will be observed that furthervr slot Il cut therein thru which-a pair of spacedf 55 turning Vmovement: of the seat never causes, thisl the position shown in Figure 6. g At the same v time, the lefthand pin I8 will move in the slot projection 22 to the position shown in full lines. Simultaneously the pin 21 will travel the length of the track 25 to the junction of the track 25 with f the track 26.

Upon further turning movement the pin 21 acts as a xed pivot and the pins I8 travel freely thru the slot I1 to the position shown in Figure '7.

When the parts reach this position the leading one of the pins I8 has reached the end of the slot I1 and the trailing one of the ping I8 has' reached the point opposite the entrance to the slot projection 22. l

Upon further turning movement the leading one of the pins I8 acts as the pivot and the pin 21 starts. to travel thru the track 26. During the A initial portion of this movement the trailing one of the pins' I8 will move into a small pocket or notch indicated at 32 in the entering part of the slot projection 22. Thereafter the trailing pin I8 which is in the notch 32 becomes the pivot until the leading pin I8 reaches substantially the Vposition shown in dotted lines in Figure. Upon further swinging movement the leading pin I8 continues to travel thru the reverse loop portion but since this lies at an angle to an arc aboutthe notch 32, the trailing pin I8 will be forced into the slot projection 22. When the frames reach a parallel position the several pins Will occupy the position shown` in Figure 8, the pin 21 having at this time completed its travel thru the cam track To relock the seat in its reversed position, the seat-frame is moved lengthwise to the left as seen in Figure 1 causing the pins I8 to move into the locking projections 23 of the opposite loop portion 2 I land slot projection 22. At the same time the pin 3I at the left end of the frame I2, as seen in Figure l, will move into the slot in the bracket 29 at the lower right part of Figure 1. The seat will, therefore, be locked in a position reversed from that shown in Figure 1. It will be apparent that the seat can be returned to a position shown in Figure l by reversing the above procedure and turning the seatframe counter-clockwise on the base frame.

While one embodiment of the invention has been shown and described in detail herein, it is to be understood that this is illustrative only and is not `intended as a denition of the scope of the invention, reference being had to the appended claims for that purpose.

What is claimed is: l. A seat comprising a base frame adapted to be secured to a iloor, a seat frame movably supfported on the base frame, cam tracks formed in one of the frames including three arcuate portions arranged in the form of la triangle with reverse loops at the ends of one of the track portions, and three cam followers on the other frame engaging the cam tracks and guiding the seat frame on the base frame.

2. A seat comprising a base frame adapted to be secured to a floor, a seat frame movably supported on the lbase frame, cam tracks formed on one of the frames including three arcuate porlrelative turning of the frames.

tions arranged in the form of a triangle, one of the track portions having reverse loops at its ends and laterally extending track yprojections spaced from its ends, and three spaced cam followers on the other frame movable in the cam tracks and guiding the frames during relative turning movement.

3. `A seat comprising a, hase frame adapted to be secured 'to afloor, a seat frame movably supported on the base frame, cam tracks formed on one of the frames including three arcuate portions arranged in, the form of a triangle, one of the track portions having reverse loops at its ends and laterally extending track projections spaced from its ends, a -pair of closely spaced cam followers on the other movable in said one' of the track'portions, and a third cam follower on the other frame lying on a line at right angles to a line connecting said pair of cam followers movablel inthe other two of said track portions.

4. A seat comprising a base-frame adapted to be secured -to a floor, a seat frame movab-ly supported on the base frame, cam tracks formed on oneof the frames including three arcuate portions arranged in the form of a triangle, one of the track portions having reverse loops at its ends and laterally extending track projections spaced from its ends, and' three spaced cam followers on the` other frame movable in the cam tracks and guiding the frames during relative turning movement, the ends of the reverse loops and of the track projections being formed with parallel locking :portions into which two of the cam followers are moved when the frames are Iparallel to limit 5. A seat comprising a 4base frame adapted to be secured to a floor, a seat frame movably supported on the base frame, cam tracks formed in one of the frames including three arcuate portions arranged in the form of a triangle and having in spaced parts of the track parallel locking portions vextending longitudinally of said one of the frames, and three spaced cam followers movable in the tracks to guide the frames for` relative rotation, two of the cam followers being moved into the locking portions of the tracks by relative lengthwise movement of the frames when they are parallel to lock the frames against rotation.

6. A seat comprising a base frameadapted to be secured to a floor, a seat frame movably supported on the lbase Vframe, cam tracks formed in one of the frames, including three arcuate` portions arranged in the form of a triangle and having in spaced Aparts of the track parallel locking portions extending longitudinally of said one of the frames, locking means on the ends ofthe frames interengaged b-y relative lengthwise movement of the frames to hold them against relative rotation, andspaced cam followers on the other frame movable in the tracks to guide the'frames during relative turning, the cam followers being moved into the locking portion of the tracks .by the relative lengthwise movement ofthe frames which interengages thelocking'means.

. 7. A seat comprising a base frame adapted to be securedfto a floor,.a seat frame movably sup-` ported on the base frame, one of the frames being formed with an arcuate cam slot terminating in reverse loops at its ends, a pair of spaced cam follower pins on the other frame movable in the slot and loops, cam track means on one of the frames including a pair of arcuate portions joining at one end at an acute angle, and afollower pin on the other of the frames movable in the cam track means.

8. A seat comprising a base frame adapted to be secured on a floor, a seat frame movably supi ported on the base frame, one of the frames being formed with an.y arcuate cam slot terminating in reverse loops at its ends, a pair of spaced cam follower pins on the other frame movable in the slot and loops, there being short slot'l extensions projecting from the arcuate slot at angles 

